US2553974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable tray and heater
Assignee: RADIANT HEATER Corp
•
Filing: 1949-01-21
•
Granted: 1951-05-22
•
Expires: 1969-01-21
Abstract
No abstract record available.
Inventors
- 👤 Lamb Wade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:31
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/24; A47J36/2483
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1419309A
Cited
US1542330A
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US1509561A
Cited
US1758703A
Cited
US1882901A
Cited
GB461275A
Cited
US2274285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |